CN211549759U - Many working faces of long tunnel ventilation structure - Google Patents
Many working faces of long tunnel ventilation structure Download PDFInfo
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- CN211549759U CN211549759U CN201922130423.6U CN201922130423U CN211549759U CN 211549759 U CN211549759 U CN 211549759U CN 201922130423 U CN201922130423 U CN 201922130423U CN 211549759 U CN211549759 U CN 211549759U
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Abstract
The utility model provides a long and large tunnel multi-working face ventilation structure, which relates to the field of tunnel construction ventilation and comprises a tunnel main body and a ventilation system, wherein a left line and a right line are respectively arranged at the left side and the right side of the tunnel main body, a horizontal guide is arranged between the left line and the right line, two groups of main cross roads are arranged at one end of the tunnel main body, a jet fan is arranged between the two groups of main cross roads, the left cross road is arranged between the left line and the horizontal guide, the right cross road is arranged between the right line and the horizontal guide, two groups of axial fans are arranged, and the two groups of axial fans are symmetrically arranged at the two ends of an air inlet lane. The ventilation efficiency of whole ventilation structure is improved, provides safer operation environment for tunnel construction.
Description
Technical Field
The utility model relates to a tunnel construction ventilation field specifically is a many working faces of long and big tunnel ventilation structure.
Background
In tunnel construction, ventilation is an indispensable technical link, and in newly-built railway lines at the present stage of China, the number of long tunnel projects is gradually increasing, but ventilation technology is generally the technical bottleneck for controlling construction of extra-long tunnels.
The tunnel construction ventilation mode can be divided into two types of air duct type ventilation and tunnel type ventilation, at present, a tunnel type jet flow ventilation mode is mostly adopted, the mode is suitable for a long tunnel with a parallel pilot tunnel, the tunnel type ventilation mode is characterized in that a main tunnel and a pilot tunnel form a complete air flow circulating system through a front cross road, a single-ended tunnel in front of the pilot tunnel and the pilot tunnel is supplemented with local air duct type ventilation, and the tunnel type ventilation is an effective method for solving the problem of long tunnel construction ventilation in the past and now and is still a main method in the future.
However, present traditional tunnel formula ventilation structure adopts whole journey forced ventilation mode mostly, adopts high-power forced ventilation machine and jet fan, and long distance air pipe need be laid in every hole moreover, greatly increased construction cost, and along with the continuous tunnelling in tunnel, the power consumption of fan is more and more big, based on this, the utility model discloses a many working faces of long big tunnel ventilation structure to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a many working faces of long and big tunnel ventilation structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a many working faces of long big tunnel ventilation structure, includes tunnel main part and ventilation system, the tunnel main part includes air inlet lane and return airway, the air inlet lane intercommunication is on the right side of tunnel main part, the return airway intercommunication is on the left side of tunnel main part.
The ventilation system comprises an axial flow fan, a jet flow fan, a left line, a right line, a flat guide, a main cross road, a left cross road and a right cross road, wherein the left line and the right line are respectively arranged on the left side and the right side of the tunnel main body, the flat guide is arranged between the left line and the right line, the main cross road is provided with two groups and is arranged at one end of the tunnel main body, the jet flow fan is arranged between the two groups of main cross roads, the output end of the jet flow fan is opposite to the left line, the left cross road is arranged between the left line and the flat guide, the right cross road is arranged between the right line and the flat guide, the axial flow fan is provided with two groups, and the axial flow fan is symmetrically arranged at two ends of the.
Preferably, a left partition part is arranged in the left line, an excavating chamber is arranged at the front end of the left partition part, a right partition part is arranged in the right line, the excavating chamber is also arranged at the front end of the right partition part, and both ends of the left partition part and the right partition part are excavating surfaces.
Preferably, the left side is said to have been seted up on the left side cross road, the one end of left side way and the excavation chamber intercommunication of left partition front end, the right side is said to have been seted up on the right side cross road, the one end of right side way and the excavation chamber intercommunication of right partition front end, the jet fan is all installed to the position that flat guide is close to left side way and right side way, and the output of jet fan installs the air hose, the end of air hose extends to in the excavation chamber.
Preferably, a partition is arranged between the main transverse channel and the left transverse channel, a partition is also arranged between the main transverse channel and the right transverse channel, a wind-blocking wall is arranged between the two groups of partitions, a wind-blocking wall is also arranged between the main transverse channel and the axial flow fan and between the partition and the axial flow fan, a jet flow fan is also arranged on one side of the partition close to the left line, and the tail end of the jet flow fan extends into the flat guide through a flexible air pipe.
Preferably, two ends of the left channel and the right channel are provided with air doors.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a ventilation system of design provides good ventilation effect for the excavation face of many operations, and the position through rational arrangement of efflux fan and the use of cooperation wind-break wall and air door, has alleviated the pressure of tunnel ventilation of growing up, has improved the ventilation efficiency of whole ventilation structure, provides safer operation environment for the tunnel construction.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is the structural schematic diagram of the utility model after the tunnel is lengthened.
In the drawings, the components represented by the respective reference numerals are listed below:
1-tunnel main body, 2-ventilation system, 3-air inlet lane, 4-air return lane, 5-axial flow fan, 6-jet flow fan, 7-left line, 8-right line, 9-flat guide, 10-main cross road, 11-left cross road, 12-right cross road, 13-left partition, 14-excavation chamber, 15-right partition, 16-excavation surface, 17-left road, 18-right road, 19-soft air pipe, 20-partition, 21-wind-blocking wall and 22-wind door.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a multi-working-face ventilation structure of a long and large tunnel comprises a tunnel main body 1 and a ventilation system 2, wherein the tunnel main body 1 comprises an air inlet lane 3 and an air return lane 4, the air inlet lane 3 is communicated with the right side of the tunnel main body 1, and the air return lane 4 is communicated with the left side of the tunnel main body 1;
Wherein, be equipped with left partition 13 in the left side line 7, excavation chamber 14 has been seted up to the front end of left partition 13, is equipped with right partition 15 in the right side line 8, and excavation chamber 14 has also been seted up to the front end of right partition 15, and the both ends of left partition 13 and right partition 15 are excavation face 16.
Wherein, left side 17 has been seted up on left cross road 11, the one end of left side 17 and the excavation chamber 14 intercommunication of left partition 13 front end, right side 18 has been seted up on right cross road 12, the one end of right side 18 and the excavation chamber 14 intercommunication of right partition 15 front end, the jet fan 6 is all installed to the position that flat guide 9 is close to left side 17 and right partition 18, and the output of jet fan 6 installs the air hose 19, the end of air hose 19 extends to excavation chamber 14.
Wherein, be equipped with between main cross road 10 and the left cross road 11 and separate the way 20, also be equipped with between main cross road 10 and the right cross road 12 and separate the way 20, be equipped with between two sets of separate the way 20 and keep off the wind wall 21, also be equipped with between main cross road 10 and the axial fan 5 and separate between way 20 and the axial fan 5 and keep off the wind wall 21, separate the way 20 and also install jet fan 6 near one side of left line 7, the end of jet fan 6 extends to in the flat leading 9 through the air hose 19.
Wherein, the two ends of the left channel 17 and the right channel 18 are both provided with air doors 22, so that after a section of tunnel is lengthened, the flat guide and the left and right lines are still isolated, the air path of the whole ventilation system is clear, and the air supply effect is kept.
One specific application of this embodiment is: according to the scheme, the electric energy is supplied to the axial flow fan and the jet flow fan through the external power supply, and the on-off of the axial flow fan and the jet flow fan is controlled through the control switch;
in particular, the direction of the arrows in the drawings represents the flow direction of the intake air;
the ventilation process is as follows: firstly, the axial fan 5 at the end of the air inlet tunnel 3 works to introduce fresh air into two ends, the right end is directly supplied to the digging surface 16 at the left end of the right partition 15, the air quantity at the left end is increased through the jet fan 6 to ensure that the fresh air is supplied to the digging surface 16 at the left end of the left partition 13, and part of the air is further pressurized through the jet fan 6 above the partition 20 and is sent into the flat guide 9 through the soft air pipe 19, the return air of the digging surface 16 at the right end also flows into the flat guide 7, then the air is sent into the digging chamber 14 through the jet fan 6 arranged close to the left channel 17 and the right channel 18 again to ensure that the working surfaces at two ends of the left partition 115 and the right partition 16 have good ventilation effect, after digging for a certain distance, the left channel 17 and the right channel 18 on the flat guide 9 are closed through the air door 22, and the jet fan 6 is additionally arranged on the extended left line 7, the right line 8 and the flat guide 9, and the position of the jet fan in the flat guide 9 is moved to be close to the next group of left channel 17 and right channel 18 (as shown in figure 2), so that fresh air can be provided for the digging surface 16 again, and a safer operation environment for tunnel construction is ensured.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides a many working faces of long big tunnel ventilation structure which characterized in that: the tunnel comprises a tunnel main body (1) and a ventilation system (2), wherein the tunnel main body (1) comprises an air inlet lane (3) and an air return lane (4), the air inlet lane (3) is communicated with the right side of the tunnel main body (1), and the air return lane (4) is communicated with the left side of the tunnel main body (1);
the ventilation system (2) comprises an axial flow fan (5), a jet flow fan (6), a left line (7), a right line (8), a flat guide (9), a main cross road (10), a left cross road (11) and a right cross road (12), the left line (7) and the right line (8) are respectively arranged on the left side and the right side of the tunnel main body (1), the flat guide (9) is arranged between the left line (7) and the right line (8), two groups of main transverse channels (10) are arranged, and is arranged at one end of the tunnel main body (1), the jet flow fan (6) is arranged between the two groups of main cross channels (10), the output end is over against the left line (7), the left cross-track (11) is arranged between the left line (7) and the horizontal guide (9), the right cross-way (12) is arranged between the right line (8) and the horizontal guide (9), the axial flow fans (5) are arranged in two groups, and the two groups of axial flow fans (5) are symmetrically arranged at two ends of the air inlet lane (3).
2. A multi-working face ventilation structure for a long tunnel according to claim 1, wherein: be equipped with left partition portion (13) in left side line (7), excavation chamber (14) have been seted up to the front end of left side partition portion (13), be equipped with right partition portion (15) in right side line (8), excavation chamber (14) have also been seted up to the front end of right side partition portion (15), the both ends that left side partition portion (13) and right partition portion (15) are excavation face (16).
3. A multi-working face ventilation structure for a long tunnel according to claim 2, wherein: seted up left side way (17) on left side cross walk (11), the one end of left side way (17) and excavation room (14) the intercommunication of left partition portion (13) front end, right side way (18) have been seted up on right side cross walk (12), the one end of right side way (18) and excavation room (14) the intercommunication of right partition portion (15) front end, jet fan (6) are all installed to the position that flat guide (9) are close to left side way (17) and right side way (18), and soft tuber pipe (19) are installed to the output of jet fan (6), the end of soft tuber pipe (19) extends to excavation room (14).
4. A multi-working face ventilation structure for a long tunnel according to claim 3, wherein: be equipped with between main cross road (10) and left cross road (11) and separate way (20), also be equipped with between main cross road (10) and right cross road (12) and separate way (20), two sets of separate and be equipped with between way (20) wind-break wall (21), also be equipped with between main cross road (10) and axial fan (5) between with separate way (20) and axial fan (5) wind-break wall (21), separate one side that way (20) are close to left line (7) and also install jet fan (6), the end of jet fan (6) is passed through soft tuber pipe (19) and is extended to in flat leading (9).
5. A multi-working face ventilation structure for a long tunnel according to claim 3, wherein: and air doors (22) are respectively arranged at the two ends of the left channel (17) and the right channel (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922130423.6U CN211549759U (en) | 2019-12-03 | 2019-12-03 | Many working faces of long tunnel ventilation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922130423.6U CN211549759U (en) | 2019-12-03 | 2019-12-03 | Many working faces of long tunnel ventilation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211549759U true CN211549759U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922130423.6U Expired - Fee Related CN211549759U (en) | 2019-12-03 | 2019-12-03 | Many working faces of long tunnel ventilation structure |
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| CN (1) | CN211549759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931655A (en) * | 2021-10-08 | 2022-01-14 | 贵州省公路工程集团有限公司 | Relay press-in type and roadway type combined ventilation system |
-
2019
- 2019-12-03 CN CN201922130423.6U patent/CN211549759U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931655A (en) * | 2021-10-08 | 2022-01-14 | 贵州省公路工程集团有限公司 | Relay press-in type and roadway type combined ventilation system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 Termination date: 20201203 |